Spinal nerves are connected to the spinal cord by which of the following structures?
A. Posterior and anterior horns
B. Posterior and anterior roots
C. Anterior root ganglia
D. The gray commissure
E. The central canal
Answer: B
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Which of the following is an example of passive immunity?
A. A vaccine B. Antibody production by B cells C. A gamma globulin shot D. A booster shot
Select the correct sequence of events that occur during inspiration
A) External intercostals and diaphragm contract, size of thoracic cavity increases, gas pressure in the lungs decreases, air flows in. B) Internal intercostals and diaphragm contract, size of thoracic cavity increases, gas pressure in the lungs decreases, air flows in. C) External intercostals and diaphragm contract, size of thoracic cavity increases, gas pressure in the lungs increases, air flows in. D) Internal intercostals and diaphragm contract, gas pressure in the lungs decreases, size of thoracic cavity increases, air flows in.
Regulation of extracellular K+ is not critical to body function because only about 2% of the total-body K+ is in the extracellular fluid
Indicate whether the statement is true or false.
Which solutes are reabsorbed from the nephron loop? select all that apply.
a) sodium loops b) glucose and amino acids c) chloride d) water e) potassium ions